Add non-mandatory attributes to nodes/edge
Add non-mandatory attributes to nodes/edge

bgyori/indra,sorgerlab/indra,sorgerlab/indra,sorgerlab/belpy,johnbachman/indra,johnbachman/indra,johnbachman/indra,sorgerlab/belpy,johnbachman/belpy,sorgerlab/belpy,sorgerlab/indra,bgyori/indra,johnbachman/belpy,bgyori/indra,johnbachman/belpy